[PATCH 1/2 v2] ARM: dts: Add Goramo MultiLink device tree
Linus Walleij
linus.walleij at linaro.org
Mon Nov 29 15:13:06 PST 2021
This adds a device tree for the Goramo MultiLink IXP425-based
WAN router.
Cc: Krzysztof Hałasa <khalasa at piap.pl>
Cc: openwrt-devel at lists.openwrt.org
Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
---
ChangeLog v1->v2:
- Amend to the final merged bidings.
- I have added bindings for this set-up of the HDLC WAN,
and they are merged to the netdev tree.
---
arch/arm/boot/dts/Makefile | 1 +
.../dts/intel-ixp42x-goramo-multilink.dts | 180 ++++++++++++++++++
arch/arm/boot/dts/intel-ixp4xx.dtsi | 17 ++
3 files changed, 198 insertions(+)
create mode 100644 arch/arm/boot/dts/intel-ixp42x-goramo-multilink.dts
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 0de64f237cd8..4084535c6489 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -263,6 +263,7 @@ dtb-$(CONFIG_ARCH_IXP4XX) += \
intel-ixp46x-ixdp465.dtb \
intel-ixp42x-adi-coyote.dtb \
intel-ixp42x-ixdpg425.dtb \
+ intel-ixp42x-goramo-multilink.dtb \
intel-ixp42x-iomega-nas100d.dtb \
intel-ixp42x-dlink-dsm-g600.dtb \
intel-ixp42x-gateworks-gw2348.dtb \
diff --git a/arch/arm/boot/dts/intel-ixp42x-goramo-multilink.dts b/arch/arm/boot/dts/intel-ixp42x-goramo-multilink.dts
new file mode 100644
index 000000000000..f80388b17a9e
--- /dev/null
+++ b/arch/arm/boot/dts/intel-ixp42x-goramo-multilink.dts
@@ -0,0 +1,180 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Device Tree file for the Goramo MultiLink Router
+ * There are two variants:
+ * - MultiLink Basic (a box)
+ * - MultiLink Max (19" rack mount)
+ * This device tree supports MultiLink Basic.
+ * This machine is based on IXP425.
+ * This is one of the few devices supporting the IXP4xx High-Speed Serial
+ * (HSS) link for a V.35 WAN interface.
+ * The hardware originates in Poland.
+ */
+
+/dts-v1/;
+
+#include "intel-ixp42x.dtsi"
+#include <dt-bindings/input/input.h>
+
+/ {
+ model = "Goramo MultiLink Router";
+ compatible = "goramo,multilink-router", "intel,ixp42x";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ memory at 0 {
+ /*
+ * 64 MB of RAM according to the manual. The MultiLink
+ * Max has 128 MB.
+ */
+ device_type = "memory";
+ reg = <0x00000000 0x4000000>;
+ };
+
+ chosen {
+ bootargs = "console=ttyS0,115200n8";
+ stdout-path = "uart0:115200n8";
+ };
+
+ aliases {
+ serial0 = &uart0;
+ serial1 = &uart1;
+ };
+
+ /*
+ * 74HC4094 which is used as a rudimentary GPIO expander
+ * FIXME:
+ * - Create device tree bindings for this as GPIO expander
+ * - Write a pure DT GPIO driver using these bindings
+ * - Support cascading in the style of gpio-74x164.c (cannot be reused, very different)
+ */
+ gpio_74: gpio-74hc4094 {
+ compatible = "nxp,74hc4094";
+ cp-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
+ d-gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
+ str-gpios = <&gpio0 2 GPIO_ACTIVE_HIGH>;
+ /* oe-gpios is optional */
+ gpio-controller;
+ #gpio-cells = <2>;
+ /* We are not cascaded */
+ registers-number = <1>;
+ gpio-line-names = "CONTROL_HSS0_CLK_INT", "CONTROL_HSS1_CLK_INT", "CONTROL_HSS0_DTR_N",
+ "CONTROL_HSS1_DTR_N", "CONTROL_EXT", "CONTROL_AUTO_RESET",
+ "CONTROL_PCI_RESET_N", "CONTROL_EEPROM_WC_N";
+ };
+
+ soc {
+ bus at c4000000 {
+ flash at 0,0 {
+ compatible = "intel,ixp4xx-flash", "cfi-flash";
+ bank-width = <2>;
+ /* Enable writes on the expansion bus */
+ intel,ixp4xx-eb-write-enable = <1>;
+ /* 16 MB of Flash mapped in at CS0 */
+ reg = <0 0x00000000 0x1000000>;
+
+ partitions {
+ compatible = "redboot-fis";
+ /* Eraseblock at 0x0fe0000 */
+ fis-index-block = <0x7f>;
+ };
+ };
+ };
+
+ pci at c0000000 {
+ status = "ok";
+
+ /*
+ * The device has 4 slots (IDSEL) with one dedicated IRQ per slot.
+ * The slots have Ethernet, Ethernet, NEC and MPCI.
+ * The IDSELs are 11, 12, 13, 14.
+ */
+ interrupt-map =
+ /* IDSEL 11 - Ethernet A */
+ <0x5800 0 0 1 &gpio0 4 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 11 is irq 4 */
+ <0x5800 0 0 2 &gpio0 4 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 11 is irq 4 */
+ <0x5800 0 0 3 &gpio0 4 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 11 is irq 4 */
+ <0x5800 0 0 4 &gpio0 4 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 11 is irq 4 */
+ /* IDSEL 12 - Ethernet B */
+ <0x6000 0 0 1 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 12 is irq 5 */
+ <0x6000 0 0 2 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 12 is irq 5 */
+ <0x6000 0 0 3 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 12 is irq 5 */
+ <0x6000 0 0 4 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 12 is irq 5 */
+ /* IDSEL 13 - MPCI */
+ <0x6800 0 0 1 &gpio0 12 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 13 is irq 12 */
+ <0x6800 0 0 2 &gpio0 12 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 13 is irq 12 */
+ <0x6800 0 0 3 &gpio0 12 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 13 is irq 12 */
+ <0x6800 0 0 4 &gpio0 12 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 13 is irq 12 */
+ /* IDSEL 14 - NEC */
+ <0x7000 0 0 1 &gpio0 3 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 14 is irq 3 */
+ <0x7000 0 0 2 &gpio0 3 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 14 is irq 3 */
+ <0x7000 0 0 3 &gpio0 3 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 14 is irq 3 */
+ <0x7000 0 0 4 &gpio0 3 IRQ_TYPE_LEVEL_LOW>; /* INT D on slot 14 is irq 3 */
+ };
+
+ /* HSS links */
+ npe at c8006000 {
+ hss at 0 {
+ status = "okay";
+ intel,queue-chl-rxtrig = <&qmgr 12>;
+ intel,queue-chl-txready = <&qmgr 34>;
+ intel,queue-pkt-rx = <&qmgr 13>;
+ intel,queue-pkt-tx = <&qmgr 14>, <&qmgr 15>, <&qmgr 16>, <&qmgr 17>;
+ intel,queue-pkt-rxfree = <&qmgr 18>, <&qmgr 19>, <&qmgr 20>, <&qmgr 21>;
+ intel,queue-pkt-txdone = <&qmgr 22>;
+ /* The Goramo GPIO-based clock etc control */
+ cts-gpios = <&gpio0 10 GPIO_ACTIVE_LOW>;
+ rts-gpios = <&gpio0 14 GPIO_ACTIVE_LOW>;
+ dcd-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
+ dtr-gpios = <&gpio_74 2 GPIO_ACTIVE_LOW>;
+ clk-internal-gpios = <&gpio_74 0 GPIO_ACTIVE_HIGH>;
+ };
+ hss at 1 {
+ status = "okay";
+ intel,queue-chl-rxtrig = <&qmgr 10>;
+ intel,queue-chl-txready = <&qmgr 35>;
+ intel,queue-pkt-rx = <&qmgr 0>;
+ intel,queue-pkt-tx = <&qmgr 5>, <&qmgr 6>, <&qmgr 7>, <&qmgr 8>;
+ intel,queue-pkt-rxfree = <&qmgr 1>, <&qmgr 2>, <&qmgr 3>, <&qmgr 4>;
+ intel,queue-pkt-txdone = <&qmgr 9>;
+ /* The Goramo GPIO-based clock etc control */
+ cts-gpios = <&gpio0 11 GPIO_ACTIVE_LOW>;
+ rts-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
+ dcd-gpios = <&gpio0 7 GPIO_ACTIVE_LOW>;
+ dtr-gpios = <&gpio_74 3 GPIO_ACTIVE_LOW>;
+ clk-internal-gpios = <&gpio_74 1 GPIO_ACTIVE_HIGH>;
+ };
+ };
+
+ /* EthB */
+ ethernet at c8009000 {
+ status = "ok";
+ queue-rx = <&qmgr 3>;
+ queue-txready = <&qmgr 32>;
+ phy-mode = "rgmii";
+ phy-handle = <&phy0>;
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ phy0: ethernet-phy at 0 {
+ reg = <0>;
+ };
+
+ phy1: ethernet-phy at 1 {
+ reg = <1>;
+ };
+ };
+ };
+
+ /* EthC */
+ ethernet at c800a000 {
+ status = "ok";
+ queue-rx = <&qmgr 4>;
+ queue-txready = <&qmgr 33>;
+ phy-mode = "rgmii";
+ phy-handle = <&phy1>;
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/intel-ixp4xx.dtsi b/arch/arm/boot/dts/intel-ixp4xx.dtsi
index 46fede021476..51a716c59669 100644
--- a/arch/arm/boot/dts/intel-ixp4xx.dtsi
+++ b/arch/arm/boot/dts/intel-ixp4xx.dtsi
@@ -139,6 +139,23 @@ timer at c8005000 {
npe: npe at c8006000 {
compatible = "intel,ixp4xx-network-processing-engine";
reg = <0xc8006000 0x1000>, <0xc8007000 0x1000>, <0xc8008000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* NPE-A contains two high-speed serial links */
+ hss at 0 {
+ compatible = "intel,ixp4xx-hss";
+ reg = <0>;
+ intel,npe-handle = <&npe 0>;
+ status = "disabled";
+ };
+
+ hss at 1 {
+ compatible = "intel,ixp4xx-hss";
+ reg = <1>;
+ intel,npe-handle = <&npe 0>;
+ status = "disabled";
+ };
/* NPE-C contains a crypto accelerator */
crypto {
--
2.31.1
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